Improvement in machines for making bungs



2 Sheets-Sheet 1 E. B. McINTOSH.

I MACHINES FOR MAKING BUNGS. 110.18%,4-07. j Patented Nov.14, 1876.

THE GRAPHIC W-NM .2 Sheets-Shea 2. E. BIMOINTOSH,

MACHINES FDR MAKING BUNGS. No. 184,407. I Patented. Now-'14, 1876.

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7 IVE; MINNIE l ll I W: lill THE GRAPHIC O0.N.Y.

UNITED STATES PATENT OFFICE.

EDWARD B. MGINTOSH, OF NEW YORK, N. Y.

IMPROVEMENT IN MA CHINES FOR MAKINGBUNGS.

Specification forming part of Letters Patent N 0. 184,407, dated November 14, 1876 application filed September 8, 1876.

- have invented a new and useful Improvement in Machines for Making Bungs for Lager, Beer Barrels, which improvement is fully set forth in the following specification, reference being had to the accompanying drawings, in which- Figure 1 is a back view of my improved bung-machine. Fig. 2 is a top view of the same. Fig. 3 is a side view of the same. Fig. 4 is a vertical section of the same. Figs. 5 and 6 are detailed views pertaining to the feed-motion. Figs. 7, 8, and 9 are detailed views of the bung at three selected stages of its formation, and illustrating the relative positions of the edges of the cutters.

The object of my invention is to rapidly make a tapered hung, with a very smooth surface, with the aid of revolving cutters and revolving centers, between which latter the bung is held, while the said revolving cutters remove the superfluous material therefrom in passing over it with a swinging motion, beginning at the big end and finishing at the small end.

The nature of my invention consists in certain constructions, arrangements, and combinations of parts, as hereinafter described and specifically claimed, whereby the above-mentioned results are produced.

In the drawings, A represents a suitable platform, supported by legs a, upon which bearing-stands B and O are fastened- The stands B are, at their highest part, connected by an inclined cylindrical bearing, B, and a horizontal face-bearing, D. The bearing B serves as the support for a shaft, E, which is provided with a wood-center, e, and which, by means of a weight, F, and cord or chain f, guided through aneye, f, or .over a pulley fastened to one of the stands B, is moved center forward when left to itself. The horizontal face-bearing I) is provided with a ver- J, is pivoted at j, and which is connected with a lever, K, pivoted at k to one of the stands B. The lower arm of the lever K is connected with a horizontal lever, L, having its fulcrum at Z, beneath the platform A, and moved by means of a pin or roller, 1, and a cam-groove, m, in a revolving cylinder, M.

The cylinder M receives its motion, by means of the shafts m n and the conical wheels M N N, from the conical wheel 0 upon the shaft 0. The shaft 0 is mounted in bearings 12 on the stands .B, and bearings c on the stands C. It may be operated by hand or by machinery, and in the former case a crank, m is attached to the shaft m, to be operated by the man who feeds the machine. Upon the highest parts of the stands 0 are two bearings, 0, carrying an inclined shaft, P, having a pronged center, 1), a loose pulley, P, held to the face of the inner bearing 0 by means of a groove, p and a retaining-hook, 0, upon the said bearing. A collar, Q, is fastened to the shaft P, between the pulley P and the outer hearing '0, which is, by means of a groove, q, and pins 1" on the forked end B of the lever B, moved in an axial direction. The collar Q has a conical extension, Q, which, when the collar is moved up to the pulley P, enters a conical bearing, 10 therein, and, by means of friction, acts as a coupling between the shaft P and the pulley P. The shafts E and P are arranged in one line, like the front and back spindle of a lathe.

The lever B is pivoted at r to a bracket, or, on the platform A, and is provided with a pin or roller, 0, which receives movement by a cam-groove, s, in the surface of a cylinder, S, fastened to the shaft 0, above described. To the free end of the shaft 0 a crank or crankwheel, T, is attached, which, by means of a crank-pin, t, and a pawl, U, operates a ratchetyvheel, V, upon a shaft, 12, which has its bearings 12 on the stands 0. Next to the ratchetwheel V a detent-wheel, W, is fastened to the shaft c, which, with the detent W serves to keep the sprocket-wheel X, on the other end of the shaft 12, from moving at an improper time. The detent W is pivoted at b to one of the stands 0, and it is provided with a cam, W having two bottom slopes, w w. The pawl U has a cam, U, with top slopes u u.

The cams W and U are so arranged between the pawl and detent that when the crank-pin t arrives at a certain point above the shaft 0, and the pawl U is about to engage one of the ratchets v of the ratchet-wheel V, the slope to of the detent is met by the slope to of the cam U of the pawl U, and the detent is thereby rapidly lifted from the notch 70 of the detent-wheel W. The pawl U then moves the ratchet-wheel, and when its stroke is finished the slopes to and a, which in the meantime have become engaged, are separated, whereupon the detent drops into the next notch w of the detent-wheel, as plainly seen in Figs. 5 and 6. The sprocket-wheel X is provided with as many sprockets w as there are notches w in the detent-wheel W, or ratchets v in the ratchet-wheel V; and the said sprockets are of such shape that the blank of which the bungs are to be made will easily enter and settle therein in a diagonal position. The sprocket-wheel itself is so situated between the centers 0 and 10 of the shafts E and P that it clears both of them before they are engaged. The cutter-head I is of ordinary construction, and has straight-edge cutters i fastened to it. The said cutter-head receives its motion by means of the pulley h and a belt from the lineshafting of the shop. The shaft E is moved by means of the coupling device between the collar Q and the pulley P, which latter is also driven by means of a belt from the line-shaftmg. l

Operation: The cutter-head I and the pulley P being set in motion, and the sprocket or feed wheel provided with blanks, and the shaft 0 set in motion in the above-described way, the cylinder S, by means of the camgroove 8 and the lever B, moves the shaft 1? toward one of the blanks Y between the sprockets w of the feed-wheel X. The said blank Y is thereby pushed against the wooden center a of the shaft E, the resistance of which,

. by means of the weight F, causes both centers e and p to enter into the ends of the blank sufficiently deep to insure its fastening be-' tween them. In the meantime the shaft]? pushes the blank entirely out of the feedwheel, and conjunctively therewith couples the collar Q and pulley P, thereby revolving the shaft P, which now retains its position.

Directly after the beginning of the said revo-' lutions the rapidly-revolving cutter-head I advances toward the blank Y by means of the cam-groove m of the cylinder M, the connecting-levers L and K, the link J, and the swiveled collar h.

the pulley P and stopping its revolution.

The shaft E follows the retreating shaft P until it is near the sprocket or feed wheel X, when it stops and ceases to support the bung, which now either drops between the sprockets m, or, in case it should still adhere to the center 10, is easily pushed off therefrom by the moving feed-wheel. While the described operation is being performed the pawlU has finished its idle stroke, engaged the next ratchet of the ratchet-wheel V, and lifted, by means of the cams U W the detent W from the wheel W. After the ratchet-wheel has been moved one tooth the detent is released and drops down into the next notch 20 of the detentwheel. Thus the sprocket or feed wheel X is moved one sprocket farther, and then and there is firmly held in place until the next step is to be performed.

The blanks are placed upon the feed-wheel by hand in ordinary cases; but when great expedition is desirable Iprefer to put the blanks into a hopper placed tangentially upon the feed-wheel, from which the blanks would fall of their own weight, and successively into the spaces between the sprockets m, In this said case I also prefer to connect the shaft 0, bymeans of belt and pulley, or other similar means, with the line-shafting of the shop.

For the production of very large bungs,

when the cutter-head has to be large and heavy, the relations of motion may be reversed by providing stationary bearings for the cutter-head I, and fastening the bearing-stands B and O, the bracket or, and the bearings of the shaft m to a swinging head, similar to the head G, which must be pivoted in the same vertical plane with the pivot 01. The levers K and L may then be omitted, and the grooved cylinder M be removed far enough from the pivot that thecam-groove m may, by operating on a stationary pin or roller, 1', swing the described head with the spindles or shafts E and P.

The operation of shaping the bung would here be precisely the same as that described and shown in the drawings. The operation of the cutter-knives upon the bung is represented in three difl'erent stages by Figs. 7, 8, and 9, the knife-edge being marked 4;, and the point of cutting being marked 1 The different means of connection between the several main parts of my machine may be modified, as necessity requires, without departing from my invention. By turning of the bung from the large to the small end I avoid the catching or lifting of splinters from the bung, which is invariably the case when the turning is done from the small toward the large end, and when the wood is very dry. As the least flaw makes the bung unfit for use, the loss, for the above-stated reasons, is sometimes considerable; but the use of my. improved machine avoids such altogether.

Having described my invention, what I" olaim, and desire to secure by Letters Patent, 1sv a 1. The two centering-spindles, in combination with the vertically-revolving and horiz'ontally swinging cutter head, constructed,

arranged, and operating substantially as set forth.

2. The combination of the cutter-head I, the swinging head G, the shaft H, the swiveled collar h, the link J, the levers K and L, and the cylinder M, having a cam-groove, m, substantially as and for the purpose set forth.

3. The combination of an inclined shaft, P, having a grooved collar, Q, with a conical extension, Q', a loose driving-pulley, P, with a conical friction-surface and a groove, 11 and the retaining-hook 0, substantially as and for p the purpose set forth.

4. The combination of a crank-wheel, T, a pawl, U, having a cam, U, a detent, W having a cam, W a ratchet-wheel, V, a detentwheel, W, and a feed-wheel, X, substantially described.

Witness my hand in the .matter of my application for a patent for an improved machine for making bungs. for lager-beer or other barrels.

EDWARD B. McINTOSH.

Witnesses:

J OE W. SWAINE, E. H. BLUME. 

